Middle school students usually have one-day spring outing in April or May.

A.a B.an C.the D./

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The TV set is really expensive. It ________ him $900.

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完形填空

Last year, I went to Belgium from the UK to teach English. It was interesting and I _________ that there are some big differences in schools between Belgium and the UK.

In the UK, students _______ wear school uniform（校服）. I think it’s good. This is why. If students all wear the same clothes, they will feel less excluded (被排斥的) because everyone _______ the same. Also it is nice to wear school uniform because you don’t have to _______ what to wear in the morning. This saves a lot of time. _______, the students in Belgium don’t wear school uniform.

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As I worked with older students aged from 16 to 18. I _______ noticed that they had a lot more subjects than I did at their age. In the UK, at 16 you enter "sixth form" and you have to _________ only three to four subjects. Some people like this. But others feel that it is too ________ to make such a big choice, because the subjects you choose will have an impact（影響）on what you can study at university.

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2.A.must B.mustn’t C.may D.can't

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The old man was sad because his favourite vase by his naughty granddaughter.

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“You can read the comic strips, you must finish your homework first.” said Mom.

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Choose the best answer and complete the passage（選擇最恰當(dāng)?shù)倪x項完成短文）：

Tom is a four - year - old child. He is studying at college because he is too intelligent for school. Tom has computer lessons at the West London Institute. He ______ well before he was one year old. When he was eighteen months old, he took telephone messages for his parents. At the age of two, he began to learn French. The strange thing about Tom is that he taught himself to read even ______ he could speak. His father said, "We were so surprised that he could read so soon. And he ______ my spelling if I made mistakes."

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Let's have lunch and continue the meeting in the afternoon. The underlined part means __________.

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There’s a new frontier in 3D printing that’s beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn’t stopping there.

Food production

With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that -- it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,”, freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

Sustainability（可持續(xù)性）

The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydro-colloids（水解膠體）from plentiful renewable like algae（藻類）and grass to replace the familiar ingredients. 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock “food” that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

Nutrition

Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, “Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday’s bread from the supermarket, you’d eat something baked just for you on demand.”

Challenges

Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

1.What benefit does 3D printing bring to food production?

A.It helps cooks to create new dishes. B.It saves time and effort in cooking.

C.It improves the cooking conditions. D.It contributes to restaurant decorations.

2.What can we learn about 3D food printing from Paragraphs 3?

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C.It needs no space for the storage of food. D.It uses renewable materials as sources of food.

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C.is tastier than food in supermarkets D.can keep all the nutrition in raw materials

4.What is the main factor that prevents 3D food printing from spreading widely?

A.The printing process is complicated. B.3D food printers are too expensive.

C.Food materials have to be dry. D.Some experts doubt 3D food printing.

5.What could be that best title of the passage?

A.3D Food Printing: Delicious New Technology B.A New Way to Improve 3D Food Printing

C.The Challenges for 3D Food Production D.3D Food Printing: From Farm to Table

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I don’t know ________, so I write to him.

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